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Does the Arm Compiler for Embedded have significant changes to upstream clang? I'm somewhat concerned that clang not being GPL may eventually become unfortunate

by cozzyd 3y ago

Does the Arm Compiler for Embedded have significant changes to upstream clang? I'm somewhat concerned that clang not being GPL may eventually become unfortunate for embedded...

pjmlp 3y ago
It isn't as if Sony and Nintendo are contributing all their changes to upstream. For example any improvements that may reveal NDA stuff from their consoles never gets upstream.
- nona42 3y ago
  For games, most performance critical code probably does not run on the CPU but on the GPU. I believe they use pretty standard open source CPU compilers and Sony e.g. do contribute to LLVM.
  - pjmlp 3y ago
    I didn't said they don't contribute at all, rather "any improvements that may reveal NDA stuff from their consoles never gets upstream." How do you think shader code gets compiled into GPGPU machine code?